There are many misconceptions about how important growth is to your life, from what kinds of growth are possible, whose growth is meaningful, and how growth is meaningful even in the face of endings and death.
https://yourmeaninginlife.com/blog/misconceptions-about-growth-oriented-meaning
You can always find a reason to complain, and you can always find a reason to be grateful. The former will lead to a miserable life; the latter will lead to a more pleasant life.
https://yourmeaninginlife.com/blog/it-will-always-be-something
Chase happiness, and you may go after temporary highs and pleasures; chase fulfillment, and you will appreciate what you have and go after making yourself and the world around you better.
While life was historically mostly competitive with survival-of-the-fittest rules, cooperation existed as well; evolution in social animals—humans in particular—enabled substantial positive-sum outcomes from their interactions.
https://yourmeaninginlife.com/blog/life-is-not-a-zero-sum-game-51464